Ventilator.



A. VANDEB. LINDENa VI'IIWJTILATOR.x

APPLICATION FILED JUNE 12, 1908.

Patented Am: 20, 1909 window and which when not in use may be AUGUST VANDER LINDEN,

OF HAYWARD, WISCONSIN.

VENTILA'IOR.

Specification of Letters Patent. Application filed Iune 12, 190a. Serial No. 438,189.

Patented April 2c, 1909.

T 0 all whom it may concern:

Be it known that I, Aueus'r VANDER LIN- DEN, a citizen of the United States, residing at Hayward, in the county of Sawyer and State of Wisconsin, have invented certain new and useful Improvements in Ventilators, ofwhich the following is a specification, reference being had to the accompanying drawings.

My invention relates to improvements in ventilating devices for use in windows.

The object of the invention is to provide a simple, inexpensive and ractical device of this character which may e readily adjusted to fit windows of different Widths and quickly and easily applied to and removed from a taken apart to permit it to be stored in a small space and easily shipped.

With the above and other objects in view, as will hereinafter more fully appear, the invention consists of the novel features of construction and the combination and arrangement of parts, illustrated in the accompanying drawings, in which Figure 1 is a view of a portion of the inner side of a window having 'my improved ventilator arranged therein; Fig. 2 1s a vertical transverse section through the window; Fig. 3 is a perspective view of. the ventilator removed from the window; Fig. 4 is a detail perspective of one of the front or body sections of the ventilator; and Fig. 5 is a similar view of one of the end pieces or sections.

In the drawings 1 represents a portion of an ordinary window frame having a sill 2 and a sash 3 slidable between stop or guide strips 4, 5.

My improved ventilator is adapted to be placed in the frame between its sill and the sash so as to permit of the entrance of fresh air into the room beneath the sash and at the same time effectively prevent rain, snow, and the like from entering the room. It comprises a front 6 and two ends 7, the front eing composed of slidably engaged sections 8, 9 so that the ventilator may be adjusted in width to accommodate different size window frames, and the ends7 being detachably connected to the front sections 8, 9 to permit the device to be readily taken apart and com pactly folded when not in use. The front sections 8, 9 are in the form of metal plates of rectangular -sha e and they are slidably connected by ben ing the upper and lower edges of one section 9 over upon themselves, as shown at 10, to provide guideways for the upper and lower edges of the other section 8. 1 The end sections 7 are also constructed of detachable connection with the front sections '8, 9 being effected by bending their fnont lar flanges 13 formed on the ends of the front sections 8, 9. These slidably engaged edges or flanges provide an interlocking connection for the sections 7, 8, 9 and (permit them to be readily separated by sli ing them apart. The rear or inner edges of the end sect-ions 7 are bent outwardly at right angles to provide flanges 14 adapted to be adjustably secured to supporting, strips 15 by forming in said flanges .14 longitudinal slots 16 to receive clamping screws 17 arranged in the strips 15. The strips 15 and the flanges 14 are adapted to enter the guideway in the window sash formed by the stop strips 4, 5 of the window frame and thereby retain the ventilator in position in the frame so that its end sections '7 are disposed vertically and its frontsection 6 is inclined upwardly and forwardly or inwardly. The adjustable connection between the supporting strips 15 and the end sections 7 is fprovided to permit the bottom edges of the out sections 8, 9 to project beneath the plane of the upper face of the inner portion to effectively prevent rain or 'snow from beating into the room beneath the ventilator.

In order to more effectively retain the ventilator in position with its flanges 14 and strips 15 between the stop strips 4, 5 of the frame I form in the upper edge of each of the end sections 7 above said strips 15 notches or seats 18 to receive the sash 3,,Twhich latter may be supported in itso'pe'n" position by the strips 15 when it is not balanced by weights or otherwise sup orted.

In applying t e ventilator ,to a window, the sas 3 is raised and the sections 8, 9 of the front 6 are forced together so that the strips 15 and flanges 14 may be inserted beneath the sash, and the sections 8, 9 are then moved a art sothat the strips 15 will be rojecte into the grooves or sash guide-way fbrmed by the stop stri s 4, 5 of the frame. .The sash may be then owered to enter the notches 18 in the end ieces and rest upon the strips 15. By ma in the connection between the strips 15 and t e end sections 7 of the ventilator adjustable the bottom edge of the front section 6 may be made to edgesupon themselves, as shown at 11 to receive similarly bent edges 12' of right angu sheet metal and are triangular in shape, their of the sill 2, as shown-in Figs. 1 and 2 so as project beneath the plane of the per face of the innerportion of the sill an thereby prevent any rain or snow working into the a plying and removing the ventilator. The v S able connection between'the sections of the front in connection with the detachable interlocking engagement of the end sections with the front sections permits the device to be readily separated and com actly folded when not in use so that it may e stored in a r small space and shipped or transported at a smallexpense. Y the device is exceedingly'simple in construc- It Will be further noted that tion so that it may beproduced at a small cost and will be strong and durable, and furthermore it is easy and convenient to adjust and to a ly to and remove from a window. WhiIe I haVe shown and described in detail the preferred embodiment of my invention I wish it understood that I do not limit myself to the precise construction set forth and that various changes in the form, proportion and minor details may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having'thus described my invention what I claim is:

1. A window ventilator comprising slidably engaged front sections, remova end fastenings passed through the slots in the flanges and into said strips for the purpose set orth.

2. A window ventilator comprisin an adjustable front section, end sections is osed at ri ht angles to the front section an provideiwith outwardly rojecting flanges having vertical slots, remfercing strips arran ed upon said flanges and adapted to enter etween the stop strips ofa window frame and fastenings passed through the slots in the flan es and into said strips, for the purpose set forth.

3. A- window ventilator comprising an adjustable front section, substantially triangular-shaped end sections dis osed at ri ht angles to the front section, an an adj usta ble connection between the end and frontscctions,-whereby the end sections may be removed from the front section when the de 

